Evaluating Equations

Solve the Equation

r ÷ 3 = 21

• 21

• 25

• 27

• 29

Tags

CCSS.3.OA.A.4

Write an equation that models the following situation: Samantha's hair was known to grow very rapidly. It began at a length of 6 in and grew at a rate of 14% a week.

• y = 6(0.14)^x

• y = 6(1 + 14)^x

• y = 6(1.14)^x

• y = 6(0.86)^x

Tags

CCSS.HSF.LE.A.2

Suppose a culture of bacteria begins with 5000 cells and dies by 30% each year. Write an equation that represents this situation.

• y = 5000(0.7)^x

• y = 30(5000)^x

• y = 5000(1.3)^x

• y = 5000x^x

Tags

CCSS.HSF.LE.A.2

Which of the following functions shows an initial amount of $15 and an increase of 35% each year?

• y = 15(35)^x

• y = 15(1 + .35)^x

• y = 15(1 − .35)^x

• y = 35(1.15)^x

Tags

CCSS.HSF.LE.A.2

Solve the equation

x+3=7

• x=4

• x=5

• x=6

• x=7

Tags

CCSS.6.EE.B.7

Solve the equation

2x=8

• x=4

• x=2

• x=8

• x=0

Tags

CCSS.6.EE.B.7

Solve the equation

3x=-9

• x=3

• x=9

• x=-3

• x=1

Tags

CCSS.6.EE.B.7

Solve the equation

x-2=8

• x=2

• x=8

• x=10

• x=12

Tags

CCSS.6.EE.B.7

Solve the equation

x+1=0

• x=-1

• x=0

• x=1

• x=2

Tags

CCSS.6.EE.B.7

Solve the equation

x+5=5

• x=-5

• x=-3

• x=-1

• x=0

Tags

CCSS.6.EE.B.7